Microsoft adds PowerPoint, Excel embeds for web sites, blog posts

It might have seemed impossible, but PowerPoint and Excel are about to become even more pervasive.

A new feature in Microsoft’s Office Web Apps will give users the ability to embed their presentations and spreadsheets in blog posts and other web pages, giving people who visit their sites a new type of window into their documents. The feature is part of broader set of incremental improvements that Microsoft is rolling out today for the 3-month-old Web-based versions of the company’s widely used productivity programs…